Dental cuspidor provided with saliva shield



April 17, 1951 c. H. OERTEL DENTAL CUSPIDOR PROVIDED WITH SALIVA SHIELD Filed July 5, 1947 INVENTOR. CARL H. OER TEL Patented Apr. 17, 1951 UNITED DENTAL CUSPIDOR PROVIDED WITH 7 SALIVA SHIELD Carl H. Oertel, Baltimore, Md. 7 Application July 5, 1947, Serial No.759,070

10 Claims.

This invention refers to dental equipment and especially to the structure incident to a conventional dental chair and more particularly to the cuspidor mounted thereon, and a sanitary shield therefor.

In a particular form of the conventional dental chair a specially designed cuspidor is provided on an arm that permits it to be swung to suit the needs and convenience of the patient in the chair. This cuspidor is of circular basin-like form having a central outlet in its bottom for the removal of water fed into it from a small tube peripherally mounted thereon and any other contents that may be deposited therein by the doctor or pa- ;tient. The'rim of the cuspidor is relatively large,

rounded and level throughout; and serves as an underduct to carry the water feed to it for washing the inner surface of the basin effectively all around. The patient uses the cuspidor after a drilling operation, washing or tooth removal,

after it is arranged by swinging it on its arm to a position in front or to the side of his head. In such a position, with the patient sitting in the chair and covered with an'apron or napkin about his chin restricting the movement of his head; and the occasion being more or less urgent,

the patient is'apt to miscalculate the accurate location of the basin. under such conditions, and especially'if he is brought up quickly from'a lying'to an upright When he expectorates position to do so, his accuracy of judgement in projecting the saliva or contents of his mouth into the cuspidor is frequently in error. The result is unsanitary and detractive and is objectionable to the doctor as well as to the patient, Itfrequently requires additional janitorial work a long time.

It is therefore an object-of the present invention to provide a new and improved cuspidor unit -for dental equipment that will avoid one or more of the disadvantages, objections and limitations of the previous art. .1 Another object of this invention is to provide An additional object of" the herein described invention is to provide arrow and improved cuspidor unit that will take the place of the conventional unit and afford a more'efiective and at--.

' appreciably.

2 tractive structure, without increasing the cost A further object of the invention is to provide a new'and improved cuspidor or unit that may be applied to a conventional dental cuspidor.

Other objects will become apparent as the invention is more fully set forth.

In order to render the features of the invention clearer, reference is made to the appended drawings. These drawings with the following description outline a particular form of the invention by way of example, while the claims included therewith emphasize the scope of the invention.

In the drawings:

Figure 1 is a front view of a cuspidor shield embodying this invention formed as part of a swinging dental chair cuspidor, with parts broken away to show its internal construction.

Figure 2 is a plan view of Figure l;

Figure 3 is a sectional view taken along line 3-3 of Figure l.

Similar reference characters refer'to similar parts throughout the drawings.

Referring to the drawing, a cuspidor shield 2| consists of a single wall of material made integral with the cuspidor [2 by forming it into a part of it during manufacture, and enameling it to suit, if of metal or clay. The upper rim I8 of the shield 2| is bent over to form a rounded ,edge and undercut to cover a perforated tube 38 used to supply water across the inside surface 20 of the shield to clean it. The rim allows sufficient space or opening l9 through its length for the water to flow down the inner surface 2|] of the shield. The rim I8 is bent around as shown into an undercut and covers a perforated tubing 22 running around within it and feeding water- .avoid the bringing of the tubing over the edge of the cuspidor, as is conventionally done. This is moresanitary, compact and attractive than the older method. I l

r The cuspidor unit, in this invention is mainly intended to prevent the patient from misdirecting the contents of his oral cavity beyond the I sides of the unit. The guard shield catchesthe contents "and limits and directs it within the basin, even though the patient cannot accurately guage the position of the basin. The water cleans :the basin walls and carries the contents through theoutlet 25 into the drain connected therewith; .It is so arranged that-it augments the appearance of the cuspidor without adding appreciably to its cost. It is more sanitary than the conventional form of cuspidor basin used with a dental chair and it is easier to handle. The handle 26 mounted on the side of the basin gives a tangible implement for the dentist or patient to use when he wants to change the position of the cuspidor. The spraying from the perforated tubings is preferably directed angularly across'the cuspidor basin walls to give a more effective cleaning.

The drawings indicate the general form of the shield which is preferably disposed at an angle back from the vertical in order to'provide ample capacity for the downwardly facing head of a patient to fit over the cuspidor without bumping it against the rim. The basin is made with the angular tilt, as shown in Figure 1, with the upper rim l8 surmounted by a glass holder 28 of the form indicated, where it will be accessible for use and avoid the need of a separate holder conventionally utilized in a more or less out-of-theway location. The water pipe 29 to the upper portion of the holder 28 is pointed at an angle to squirt into the glass 36 placed there. When the glass is not there the water pipe is able to squirt against the bottom of the holder and through the arcuate lipped channel 3| flow down into the basin and to the drain. The valve 32 is placed on top where it will be accessible and convenient to all who are apt to use it.

In the construction of the shield, the sides 33 are closed into prevent the water used in the rims being splashed out. The cuspidor, while frequently applicable to the dental chair used for the patient, may also be applied to any pedestal that is employed as an article independent of the chair but used therewith occasionally if they can be brought conveniently together. An arm 34 is employed in Figures 1 and 2 to support the cuspidor and enable it to be swung around thereon to reach the patient and permits its movement therefrom to suit the convenience of all concerned. For this purpose the arm 3 is arranged on a swivel bracket 35 maintained in a plane that will keep the cuspidor horizontal. 1

While but one general form of the invention is shown in the drawings and described in the specification, it is not desired to limit this application for patent to this particular form or in any other wa otherwise thanlimited by the scope thereof, as it is appreciated that other forms of construction could be made that would use the same principles and come within the scope of the appended claims.

Having thus described the invention, what is claimed is: V

l. A dental cuspidor comprising a basin, said basin having its upper edge turned inwardly to form a channel, a tube in the channel adapted to supply water thereto through openings in the tube directed towards the walls of said basin, an upper extension on'said basin extending semiperipherally thereof, said extension having its upper edge turned inwardly to form a channel, and a tube in the channel adapted to supply wathe walls thereof semi-peripherally of the rim of said basin, said extension having concave walls from its upper rim to its points of junction with said basin, the upper rim of said extension being turned inwardly to form a channel, and a tube in this channel adapted to supply water thereto through openings directed towards the walls of said extension and of said basin.

- 3. A cuspidor unit comprising in combination, a basin of conventionalform having an inwardly bent upper rim, forming an underduot, a shield extending upwardly from the rim having its upter thereto through openings directed towards -the walls of said extension and towards the walls of said basin. f

2. A dental cuspidor comprising a basin, means for adjustably mounting said basin ona dental per edge portion curved over, said shield being apron for the items ejected from a patient towards the basin to catch them.

4. A cuspidor unit comprising in combination, a basin of conventional form having an inwardly bent upper rim, forming an edge portion curved over, a shield being made integral with said basin and forming an apron for the items ejected from a patient towards the basin to catch them, an inturned rim on the upper edge of said shield, said rims being arranged for covering tubings placed therein for providing water for wetting inner surfaces of the shield and basin.

5. A cuspidor unit comprising in combination, a basin of conventional form having an inwardly bent upper rim, forming an underduct, a shield extending upwardly from the rim havin its upper edge portion curved over and forming a second rim, said shield being made integral with said basin. and forming an apron for the items ejected from a patient towardsthe basin to catch them,

said second rim beingarranged for covering a tubing included and placed therein for providing water for wetting inner surfaces of the shield and basin, said first mentioned rim covering a tubing aforesaid and used to supply water thereto for cleaning the basin-walls.

6. A cuspidor unit comprising in combination, a basin of conventional form having an inwardly bent uppernriml, forming an underduct, a shield extending upwardly from the rim having its upper edge portion curved over and forming a second rim,said shield being made integral with said basin and forming an apron for the items ejected from a patient towards the basin to catch them, said second rim being arranged for covering a tubing included and placed therein for providing water for wetting inner surfaces of the shield and basin, said first mentioned rim covering a tubing aforesaid and used to supply water thereto for cleaning the basin walls, and connections formed in the basin and shield for attachment of a water service thereto for said tubing.

,7. A cuspidor unit comprising in combination, abasin of conventional form having an inwardly bent upper rim, forming anunderduct, a shield extending upwardly from the rim having its upper edge portion curved over and forming a second rim, said shield being made integral with said basin and forming an apron for the items ejected from a patient towards the basin to catch them, said second rimbeing arranged for covering a tubing included and placed therein for providing water for wetting inner surfaces of the shield and basin, said first mentioned rim covering-a tubing aforesaid and used to supply water thereto for cleaning the basin walls, connections formed in the basin and. shield for attachment of a water service thereto for said tubing, and a handle exteriorly secured to said basin,

' .8; Acus'pidor unit comprising in combination,

a basin of conventional form having an inwardly bent upper rim, forming an underduct, a shield extending upwardly from the rim having its upper edge portion curved over and forming a second rim, said shield being made integral with said basin and forming an apron for the items ejected from a patient towards the basin to catch them, said second rim being arranged for cover-- ing a tubing included and placed therein for providing water for wetting inner surfaces of the shield and basin, said first mentioned rim covering a tubing aforesaid and used to supply water thereto for cleaning the basin walls, connections formed in the basin and shield for attachment of a water service thereto for said tubing, and a holder mounted on the rim of the shield for holding a glass and including water connections for filling the glass or cleansing the holder, said holder having lips formed thereon for the diversion of the water from the holder to the basin walls.

9. A cuspidor unit comprising in combination, a basin of conventional form having an inwardly bent upper rim, forming an underduct, a shield extending upwardly from the rim having its upper edge portioncurved over andforming a second rim, said shield being made integral with said basin and forming an apron for the items ejected from a patient towards the basin to catch them, said second rim being arranged for covering a tubing included and placed therein for roviding water for wetting inner surfaces of the shield and basin, said first mentioned rim covering a tubing aforesaid and used to supply water thereto for cleaning the basin and shield for attachment of a water service thereto for said tubing, a holder mounted on the rim of the shield for holding a glass and including water connections for filling the glass or cleansing the holder, said holder having lips formed thereon for the diversion of the water from the holder to the basin walls, and an arm for supporting the cuspidor structure complete for attaching the unit to an extraneous object and permitting it to be swung thereon,

10. A cuspidor unit comprising in combination, a basin of conventional form having an inwardly bent upp r rim, forming an underduct, a shield extending upwardly from the rim having its upper edge portion curved over and forming a second rim, said shield being made integral with said basin and forming anapron for the items ejected from a patient towards the basin to catch them, said second rim being arranged for covering a tubing included and placed therein for providing water for wetting inner surfaces of the shield and basin, said first mentioned rim covering a tubing aforesaid and used to supply water thereto for cleaning the basin walls, connections formed in the basin and shield for attachment of a water service thereto for said tubing, a holder mounted on the rim of the shield for holding a glass and including water connections for filling the glass ,or cleansing the holder, said holder having lips formed thereon for the diversion of the water from the holder to the basin walls, an arm for supporting the cuspidor structurecomplete for attaching the unit to an extraneous object and permitting it to be swung'thereon, said shield being formed at an angle to the Walls of the basin to. enlarge the space wherein the user may bend his head therein during his use thereof said apron facilitating draining into the basin.

CARL H. OERTEL.

REFERENCES CITED The following references are of record in the file of this patent: V 

